Two arrested in Forest Grove accident that killed sisters

Two people have been arrested in the traffic accident that killed two Forest grove sisters on Sunday evening.

The alleged driver of the vehicle, 18-year-old Cinthya Garcia Cisneros of Forest Grove, was charged with two counts of failure to perform duties of a driver to injured person(s). An alleged passenger in the vehicle, 18-year-old Mario Echeverria of Cornelius, was charged with tampering with evidence and hindering prosecution.

The arrests were announced Tuesday evening, Oct. 22.

Sunday's accident killed 11-year-old Abigail Robinson, who died after being rushed by Life Flight to Legacy Emanuel Medical Center, and her 6-year-old sister Anna Dieter-Eckerdt. The sisters were struck by a vehicle at about 8:42 p.m. as they played in a pile of leaves outside their home near the intersection of 17th Avenue and Main Street in Forest Grove.

Police said Eckerdt died on scene. A spokesperson with the Multnomah County Medical Examiners Office said Robinson died around 11:30 p.m. Monday, Oct. 21.

On Monday night, hundreds of community members gathered at the Forest Grove Sonrise Church to support the family.

Police said Monday they had seized the vehicle that reportedly hit the two girls. Detectives did not immediately release the names of the driver and passenger. Capt. Mike Herb, a spokesperson for the Forest Grove Police Department, said late Monday that investigators were no longer calling the incident a hit and run. Herb would not elaborate on reasons for the change.

The Washington County district attorneys office is assisting with the investigation.